The SMA Sunny WebBox provides a connection between the operator’s computer and/or the free Sunny Portal web site (www.sunnyportal.com). The WebBox can be connected to a Sunny Boy, Sunny Tower, Sunny Island, or Sunny Central inverter (up to 50 units). Connection is made with 4-conductor twisted pair cable between the inverter’s RS-485 output and the Sunny WebBox terminals. The Sunny WebBox connects to a local area network (LAN) with an Ethernet cable or to a phone line with the optional modem. The Sunny WebBox stores system performance data in its internal 8 MB memory or on a standard SD memory card and can be set to upload the data to the Sunny Portal website at user-selectable intervals. Password protected. 5-year warranty.